Ipropylene glycol yinto odla ngokuyibona kwizithako zoluhlu lwezithambiso zokusetyenziswa kwansuku zonke.Ezinye zibhalwe njenge-1,2-propanediol kunye nezinye njengeI-1,3-propanediol, ngoko yintoni umahluko?
I-1,2-Propylene glycol, i-CAS No. 57-55-6, i-molecular formula C3H8O2, i-chemical reagent, ixutywe ngamanzi, i-ethanol kunye ne-solvents ezininzi zezinto eziphilayo.Lulwelo olungenambala lwe-viscous kwimeko yesiqhelo, phantse alunavumba kwaye luswiti kancinci kwivumba elimnandi.
Ingasetyenziswa njengearhente yokumanzisa kwizinto zokuthambisa, intlama yamazinyo kunye nesepha kunye ne-glycerin okanye i-sorbitol.Isetyenziselwa ukumanzisa kunye ne-agent yokulinganisa kwiidayi zeenwele kunye ne-antifreeze agent.
I-1,3-Propylenei-glycol, i-CAS No. 504-63-2, i-molecular formula yi-C3H8O2, i-colorless, i-odorless, ityuwa, i-hygroscopic viscous liquid, i-oxidized, i-esterified, i-miscible ngamanzi, i-miscible kwi-ethanol, i-ether.
Ingasetyenziselwa ukuhlanganiswa kweentlobo ezininzi zamachiza, i-polyester entsha ye-PTT, i-pharmaceutical intermediates kunye ne-antioxidants entsha.Yimathiriyeli ekrwada yokuveliswa kwepolyester engaxutywanga, iplastiki, i-surfactant, i-emulsifier kunye ne-emulsion breaker.
Zombini zinefomula yemolekyuli efanayo kwaye zi-isomer.
I-1,2-Propylene glycol isetyenziswe njenge-antibacterial agent okanye umgqugquzeli wokungena kwi-cosmetics kwiindawo eziphezulu.
Kwiindawo ezisezantsi, ngokuqhelekileyo isetyenziswa njenge-moisturizer okanye uncedo lokucoca.
Kwiindawo ezisezantsi, inokusetyenziswa njenge-pro-solvent yezithako ezisebenzayo.
Ukucaphuka kwesikhumba kunye nokhuseleko kwiindawo ezahlukeneyo zihluke ngokupheleleyo.
I-1,3-Propylene glycol isetyenziswa kakhulu njenge-solvent kwi-cosmetics.Yi-organic polyol moisturizing solvent enceda izithako zokuthambisa zingene eluswini.
Inamandla aphezulu okuthambisa kune-glycerin, i-1,2-propanediol kunye ne-1,3-butanediol.Ayinancangathi, ayifuni kutshisa, kwaye ayinangxaki nokucaphuka.
Iindlela eziphambili zemveliso ye-1,2-propanediol zezi:
1. Indlela yePropylene oxide hydration;
2. Propylene ngqo catalytic oxidation indlela;
3. Indlela yokutshintshiselana nge-Ester;I-4.glycerol hydrolysis synthesis method.
I-1,3-Propylene glycol iveliswa ikakhulu ngu:
1. Indlela ye-Acrolein yamanzi;
2. Indlela ye-ethylene oxide;
3. Indlela ye-Glycerol hydrolysis synthesis;
4. Indlela yeMicrobiological.
I-1,3-Propylene glycol ibiza kakhulu kune-1,2-Propylene glycol.I-1,3-PropyleneI-glycol inzima kakhulu ukuvelisa kwaye inesivuno esiphantsi, ngoko ke ixabiso layo lisephezulu.
Nangona kunjalo, olunye ulwazi lubonisa ukuba i-1,3-propanediol iyancipha kwaye ingakhathazeki kakhulu kwesikhumba kune-1,2-propanediol, ide ifikelele kwinqanaba lokungaphenduli.
Ngoko ke, kwiminyaka yakutshanje, abanye abavelisi batshintshe i-1,2-propanediol kunye ne-1,3-propanediol kwizithako zokuthambisa ukuze kuncitshiswe ukungahambi kakuhle okunokuthi kwenzeke kwesikhumba.
Ukukhathazeka kwesikhumba okubangelwa yizimonyo akunakubangelwa yi-1,2-propanediol okanye i-1,3-propanediol yodwa, kodwa inokubangelwa yizinto ezahlukeneyo.Njengoko ingqikelelo yabantu yempilo yokuthambisa kunye nokhuseleko isiya isiba nzulu, imfuno eyomeleleyo yentengiso iya kuqhubela phambili abavelisi abaninzi ukuba baphuhlise iimveliso ezingcono ukuhlangabezana neemfuno zesininzi sabathandi bobuhle!
Ixesha lokuposa: Sep-29-2021